The Tracer LPLI series lithium battery MPPT solar charge controller combines solar charge controller and LED constant current driver into one unit which is ideal for solar LED Lighting, especially when dimmer function is needed. The advanced Maximum Power Point Tracking charging methods enables the system charging and discharging management to obtain the most radical optimization. Increase the system flexibility, yet lower down the system cost.

For all established module technologies, optimized for solar systems with module voltages higher than the battery voltage.
You can use these controllers with modules which are actually intended for use in grid-connected systems.

The most efficient working of the solar modules is modified by various factors such as module temperature, irradiation, module type etc. This working point is trough the internal microcontroller continually monitored and optionally controlled so that the optimum performance of the solar module is given and your batteries are loaded with the highest available current.

What happens when you hook up a 130 watt panel to your 12V battery through a regular charge controller?
Unfortunately, what happens is not 130 watts!
Your panel puts out 7.4 amps. Your battery is setting at 12 volts under charge: 7.4 amps times 12 volts = 88.8 watts. You lost over 41 watts - but you paid for 130. That 41 watts is not going anywhere, it just is not being produced because there is a poor match between the panel and the battery. With a very low battery, say 10.5 volts, it's even worse - you could be losing as much as 35% (11 volts x 7.4 amps = 81.4 watts. You lost about 48 watts.
Here is where the optimization with MMPT, or maximum power point tracking comes in. Assume your battery is low, at 12 volts. A MPPT takes that 17.6 volts at 7.4 amps and converts it down, so that what the battery gets is now 10.8 amps at 12 volts. Now you still have almost 130 watts, and everyone is happy.

In photovoltaic solar systems lead-acid, maintenance-free lead-acid, lead-gel and lead-fleece batteries for energy storage are typically used. Lead batteries must be protected against deep discharging and overcharging. The MPPT solar charge controller fulfills both requirements, the batteries are also perfectly maintained by an intelligent service mode.